Isolation transformer

Thread Starter


Joined Apr 29, 2008
As an example : A 1:1 ratio and1 primary 1 secondary isolation transformer

1)why we need to connect a secondary winding to earth?what is the purpose of it?

2)if we are not doing so what would happen?will it generate noise?

3)if accidently human body touching any secondary windings of isolation transformer ,would it trip off the Residual current circuit breaker(RCCB) placed at the input primary?